Grass of the eastern united states and tropical america having spikelets enclosed in prickly burs .
美国东部和热带美洲的草,刺果里有小穗。
Dental excavating burs chinese version , dental excavating burs english version , dental excavating burs chinese translation .
牙科用挖钻英文版,牙科用挖钻中文版,牙科用挖钻翻译。
Shall our institutions be like those chestnut burs which contain abortive nuts , perfect only to prick the fingers ?
我们的身体难道就像那些包裹着干瘪果仁,只能用来刺破手指的板栗芒刺吗?
Any of several large deciduous trees with rounded spreading crowns and smooth gray bark and small sweet edible triangular nuts enclosed in burs ; north temperate regions .